#
# (c) Copyright Ascensio System SIA 2024
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

def memoize(func):
    def wrapper(*args, **kwargs):
        if wrapper.called:
            return wrapper.result
        wrapper.called = True
        wrapper.result = func(*args, **kwargs)
        return wrapper.result
    wrapper.called = False
    wrapper.result = None
    return wrapper
